InterviewSolution
Saved Bookmarks
| 1. |
122i and ane unit veetars aslong a and y as respectvely. What is the megnstudeA 2i.tong the directiens or i-j and i j? TYou may une graptucal method |
|
Answer» magnitude of i+j and i-j are equal having value= √1²+1² = √2 so, direction of both vectors are i+j/√2 and i-j/√2 now component of 2i+3j in the direction of i+j/√2 and i-j/√2 are , (2i+3j)•(i+j)/√2 = (2+3)/√2 = 5/√2 (2i+3j(i-j)/√2 = (2-3)/√2 = -1/√2 |
|